Autoimmune demyelinating disease; magnetic resonance imaging shows T2 lesions in brain and spinal cord
Expansion
Multiple Sclerosis
Purpose
Diagnosed by McDonald criteria requiring magnetic resonance imaging plus clinical or laboratory evidence
Clinical Context
Multiple sclerosis: lesions T2 hyperintense, often periventricular. Gadolinium enhancement equals active lesion. McDonald criteria show dissemination in space (lesions separate locations) and time (new lesions on follow-up).
Related Terms
- Demyelination
- Autoimmune
Key Points
- Multiple sclerosis shows brain lesions perpendicular to ventricles, infratentorial, spinal cord lesions; enhancing lesions on gadolinium equals active